@import url('https://fonts.googleapis.com/css?family=Montserrat:400,600,900|IBM+Plex+Mono:500i');
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
  display: block;
}
audio,
canvas,
video {
  display: inline-block;
}
audio:not([controls]) {
  display: none;
  height: 0;
}
[hidden] {
  display: none;
}
html {
  font-family: sans-serif;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
}
a:focus {
  outline: thin dotted;
}
a:active,
a:hover {
  outline: 0;
}
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
abbr[title] {
  border-bottom: 1px dotted;
}
b,
strong {
  font-weight: bold;
}
dfn {
  font-style: italic;
}
hr {
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  height: 0;
}
mark {
  background: #ff0;
  color: #000;
}
code,
kbd,
pre,
samp {
  font-family: monospace, serif;
  font-size: 1em;
}
pre {
  white-space: pre-wrap;
}
q {
  quotes: '\201C''\201D''\2018''\2019';
}
small {
  font-size: 80%;
}
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}
img {
  border: 0;
}
svg:not(:root) {
  overflow: hidden;
}
figure {
  margin: 0;
}
fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}
legend {
  border: 0;
  padding: 0;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  margin: 0;
}
button,
input {
  line-height: normal;
}
button,
select {
  text-transform: none;
}
button,
html input[type='button'],
input[type='reset'],
input[type='submit'] {
  -webkit-appearance: button;
  cursor: pointer;
}
button[disabled],
html input[disabled] {
  cursor: default;
}
input[type='checkbox'],
input[type='radio'] {
  box-sizing: border-box;
  padding: 0;
}
input[type='search'] {
  -webkit-appearance: textfield;
  -moz-box-sizing: content-box;
  -webkit-box-sizing: content-box;
  box-sizing: content-box;
}
input[type='search']::-webkit-search-cancel-button,
input[type='search']::-webkit-search-decoration {
  -webkit-appearance: none;
}
button::-moz-focus-inner,
input::-moz-focus-inner {
  border: 0;
  padding: 0;
}
textarea {
  overflow: auto;
  vertical-align: top;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
*,
*::after,
*::before {
  box-sizing: border-box;
}

body {
  --color-text: #fff;
  --color-bg: #000000;
  --color-link: #f4bf3f;
  --color-link-hover: #fff;
  --color-info: #6355b7;
  font-family: 'Montserrat', Helvetica, Arial, sans-serif;
  min-height: 100vh;
  color: #57585c;
  color: var(--color-text);
  background-color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page Loader */
.js .loading::before {
  content: '';
  position: fixed;
  z-index: 100000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
}

.js .loading::after {
  content: '';
  position: fixed;
  z-index: 100000;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  margin: -30px 0 0 -30px;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0.4;
  background: var(--color-link);
  animation: loaderAnim 0.7s linear infinite alternate forwards;
}

@keyframes loaderAnim {
  to {
    opacity: 1;
    transform: scale3d(0.5, 0.5, 1);
  }
}

a {
  text-decoration: none;
  color: var(--color-link);
  outline: none;
}

a:hover,
a:focus {
  color: var(--color-link-hover);
  outline: none;
}

.hidden {
  position: absolute;
  overflow: hidden;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* Icons */
.icon {
  display: block;
  width: 2em;
  height: 2em;
  margin: 0 auto;
  fill: currentColor;
}

main {
  position: relative;
  margin: 0 auto;
}

/* Header */
.codrops-header {
  position: relative;
  z-index: 100;
  display: flex;
  flex-direction: row;
  align-items: center;
  width: 100%;
  padding: 10vw;
  background-image: linear-gradient(110deg, #1e089b, #4702a0);
  font-size: 75%;
}

.codrops-header__inner {
  display: flex;
  max-width: 500px;
  flex-direction: column;
  align-items: flex-start;
}

.codrops-header__title {
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 600;
  margin: 0;
  padding: 0.5rem 0;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  background: linear-gradient(90deg, #f7c53d 0%, #9302a0 50%, #6dbaa3 100%);
  background-size: cover;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.info {
  margin: 1rem 0;
  color: var(--color-info);
}

.github {
  display: block;
}

/* Top Navigation Style */
.codrops-links {
  position: relative;
  display: flex;
  justify-content: center;
  text-align: center;
  white-space: nowrap;
}

.codrops-icon {
  display: inline-block;
  margin: 0.15em;
  padding: 0.25em;
}

.grid__item {
  position: relative;
  display: grid;
  grid-template-columns: 100%;
  grid-template-rows: 100%;
  align-items: center;
  justify-items: center;
  overflow: hidden;
  padding: 4rem 1.5rem;
  height: 100vw;
  width: 100vw;
  background: var(--color-item-bg);
}

.grid__item-title {
  font-size: 0.85rem;
  color: var(--color-item-title);
  align-self: flex-start;
  margin: 0;
}

.action {
  position: absolute;
  top: 0;
  right: 0;
  background: none;
  margin: 2rem;
  color: var(--color-action);
  border: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.action:focus {
  outline: none;
}

.particles {
  position: relative;
  grid-area: 1 / 1 / 2 / 2;
}

.particles-canvas {
  position: absolute;
  pointer-events: none;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
}

.particles-wrapper {
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.particles-button {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  position: relative;
  border-radius: 5px;
  border-radius: var(--radius-button);
  background: var(--color-button-bg);
  color: var(--color-button-text);
  border: 0;
  border: var(--border-button);
  margin: 0;
  padding: 1.5rem 3rem;
  padding: var(--button-padding);
}

.particles-button:focus {
  outline: none;
}

.no-js .particles-button {
  grid-area: 1 / 1 / 2 / 2;
}

.theme-5 {
  --color-action: #003ff1;
  --color-button-bg: #003ff1;
  --color-button-text: #fff;
  --button-padding: 1rem 2rem;
  --radius-button: 5px;
  --border-button: 0;
}

@media screen and (min-width: 50em) {
  .codrops-header {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    min-height: 100vh;
  }
  .codrops-header__title {
    font-size: 3rem;
  }
  .codrops-header::after {
    content: '↓向下滚动页面查看示例DEMO';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    margin-bottom: 1rem;
    /* color: var(--color-scroll); */
    color: #fff;
  }
  .github {
    position: absolute;
    top: 0;
    left: 0;
    margin: 2rem;
  }
  .grid {
    display: grid;
    grid-gap: 22px;
    grid-template-columns: repeat(2, calc(50vmax - 11px));
  }
  .grid__item {
    height: 50vmax;
    width: 100%;
    padding: 1.5rem;
  }
  .codrops-header {
    font-size: 100%;
    padding: 0 0 2rem 0;
    border: 22px solid black;
  }
}
